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' W. COLLINS.

MAQHINB- FUR FINISHING METALLIC PIPES- Pat ented Mar.6,1883-.

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I w; COLLINS. MACHINE FOR FINISHING METALLIC PIPES. No. 273,258.Patented Mar.6,1883.

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N. Pz'rzns. Mo-Lmnpher, Washington. I;v

UNITED STATES PATENT OFFICE.

WILLIAM COLLINS, OF SYRAGIISE, NEW YORK.

MACHINE FOR FINISHING METALLIC PIPES.

SPECIFICATION forming part of Letters Patent No. 273,258, dated March 6,1883.

Application filed October 16, 1882. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM OoLLINs, of Syracuse, in the county ofOnondaga, in the State of New York, have-invented new and usefulImprovements in Machines for Finishing Metallic Pipes, of which thefollowing, taken in connection with the accompanying drawings, is afull, clear, and exact description.

This invention consists in an improved arrangement ofcircumferentially-grooved rollers, between which to pass the pipes to befinished, and in certain novel means for guiding the said pipes in theirpassage to and from the said rollers, whereby the operation is greatlyfacilitated and expedited, as hereinafter more fully explained.

Referring to the annexed drawings, Figure 1 is a vertical transversesection of my invention, taken on line 00 00, Fig. 2. Fig.2 is a planview of the same. Fig. 3 is a side elevation, and Fig. 4 is a detailView of the guide which maintains the pipe in the same plane with thatof the groove of the rollers. 7

Similar letters of reference indicate corresponding parts.

It It It represent three rollers mounted on vertical shafts s, which arejournaled in suitable bearings, c, secured to a rigid upright frame, A,said rollers being arranged with their peripheries in juxtaposition, andprovided with a circumferential groove, u,of semicircular form incross-section, so that the grooves of two adjacent rollers form acircular opening between said rollers. By means of gears G G G,connected with the respective shafts and meshing in one another, therollers R R It are caused to rotate in unison with each other.

a 0. represent horizontal troughs or ways, arranged at opposite sides ofthe rollers R R 1i, and in range with the circular opening formedbetween the rollers by their grooves u, as before described. Saidtroughs are supported adjustably in their elevation by jacks orstandards f, adapted to be raised or lowered, as may be required tobring the troughs inrange with the grooves a, the rollers R beingremovable from their shaft and inter- -'changeable with rollers havinggrooves of difother of the circular openings between the rollers R R R,the troughs a a serving to support and guide the pipes in theiraforesaid passage.

In order to dispense with the labor of lifting the pipes from one troughto another, and to facilitate and expedite the operation,I connect thetroughs by cross-skids b I), placed nearly or quite even with the topthereof. This allows the pipes to be rolled from trough to trough.

Between the rollers I arrange a guide, 0, which reaches, as near aspossible, to the point of contact between said rollers, and has itsupper face in line with the lower edge of the grooves u, therebyinsuring a true entrance of the pipes into the said grooves, andguarding against the pinching of the sides of the pipes between theedges of the grooves. Aside from the guide 0, Iemploy the usualfunnel-shaped guide, g, to facilitate the entrance of the pipes betweenthe rollers.

Havingdescribed my invention,what I claim as new, and desire to secureby Letters Patent, 1s-

1. The combination and arrangement of three or morecircumferentially-grooved rollers, R R R, mounted on vertical shafts,and placed with their peripheries in juxtaposition, suitable gearing, GG G, connected with said shafts for operating them in unison, andhorizontal tongues a a, arranged at opposite sides of the rollers and inrange with the grooves of two adjacent'rollers, substantially as shownand described.

2. The combination of three or more circumferentially-grooved rotaryrollers, It R R, mounted on vertical shafts, and placed with theirperipheries in juxtaposition, a guide, 0, reachingbetween the rollers,and arranged with its upper face in line with the lower edge of thegroove of the roller, ways a or, arranged at opposite sides of therollers, and skids 12, connectiug the ways, substantially as describedand shown, for the purpose set forth.

In testimony whereof I have hereunto signed my name and affixed my seal,in the presence

